CN103299676A

CN103299676A - Mobile radio communications signaling

Info

Publication number: CN103299676A
Application number: CN2011800645468A
Authority: CN
Inventors: 扬妮克·莱尔
Original assignee: NEC Casio Mobile Communications Ltd
Current assignee: NEC Corp
Priority date: 2011-01-14
Filing date: 2011-12-09
Publication date: 2013-09-11
Anticipated expiration: 2031-12-09
Also published as: JP5867506B2; EP2664179A4; JP2014502795A; US9094936B2; US9549431B2; GB201100612D0; EP2664179A1; WO2012096098A1; CN103299676B; EP2664179B1; US20150289313A1; US20130288726A1

Abstract

The present invention provides for a mobile radio communications device operative to signal a non-access stratum message to a mobile radio communications network device, for establishing and/or maintaining network connection, the device being arranged to include within the message a flag indicating the availability of extended NAS messaging found within an additional message separate from, but forming an extension to the non-access stratum message, and also for a signaling structure to be employed by such a device and a network device for exchanging signaling therewith and of course to related methods of such devices.

Description

The mobile radio signaling

The cross reference of related application

Require the priority of the British Patent Application No.1100612.9 that submits on January 14th, 2011, its content is incorporated into herein with way of reference.

Technical field

The present invention relates to the mobile radio signaling, specifically be to relate to and be configured to send and receive the concrete signaling structure that signaling will adopt with the mobile radio communication apparatus subscriber equipment (UE) of setting up/keep network connection and mobile radio communication network equipment and these equipment.

Background technology

Along with the continuous evolution of mobile radio communication network technology, a large amount of network users adopt according to the equipment as the additional or alternative second generation (2G) standard operation of the third generation (3G) UMTS standard.For many years, the GSM standard provides stable function at circuit switching (CS) territory especially.

Yet, along with ongoing development described above and system evolved and according to the third generation partner agreement (3GPP) of for example evolved packet system (EPS), have been found that: even in the CS territory, also be necessary to carry out some modifications.Especially, to introduce additional information be necessary for usual practice such as initial Non-Access Stratum (NAS) message (those message that occur as the part as position updating process, for example, so-called location update request message).

Described in 3GPP TS 24.008, version 9 need add circuit switched fallback mobile termination (CSMT) mark to location update request message, and in version 10, also adds circuit switched fallback and move (CSMO) mark that makes a call.

Therefore, have been found that: for example location update request message has been identified as the suitable carrier of ever-increasing information, and such requirement may continue.

Yet the particular problem that occurs when considering the 2G/GSM operation is: the message size that the initial NAS message that UE sends (as, the location update request message that sends when setting up special-purpose the connection with network) presents 20 eight bit bytes limits.

This restriction results from the maximum number of in the information field of unnumbered information frame (UI frame) when Separate Dedicated Control Channel SDCCH sends eight bit byte.

This has obtained clearly confirmation in the following extracts from 3GPP TS 44.006,

" 8.8.3 is for the maximum number of eight bit byte in information field (N201) partially or completely available I, UI, SABM and the UA frame

Maximum number for the partially or completely available eight bit byte of information field (N201) is:

-for the frame of form A and B:

-for SACCH:N201=18;

-for FACCH and SDCCH:N201=20,

-for the frame of form Bbis:

-for BCCH, AGCH, NCH and PCH:N201=23;

-for the frame of form Bter:

-for SACCH:N201=21;

-for FACCH and SDCCH:N201=23;

-for the frame of form B4:

-for SACCH:N201=19.″

As mentioned above, location update request message is the message that presents restriction in length, and at present, as described in above-mentioned technical specification, this restriction is 20 eight bit bytes.As described in 3GPP TS 44.005, because " for unacknowledged operation, data link layer does not provide the segmentation service ", location update request message must keep meeting this maximum length.

In more detail, with reference to 3GPP TS 24.008 sub-clause 9.2.15, in version 8, only two eight bit bytes can be used for the expanding location update inquiry information and only can use when adopting the IMSI mobile entity.Yet described to quoting of version 8 and version 9 as mentioned above, these two available eight bit bytes have found purposes.In version 9, only an eight bit byte still can be used for the expanding location update request, and in version 10, the eight bit byte of two free time is used, and no longer includes the content that eight bit byte still can be used for further expanding location update request message.

Though advised to optimize the use to any remaining bits in the location update request message, yet the actual size of message is still limiting factor.

Summary of the invention

The present invention seeks to provide a kind of NAS signaling structure that is better than known NAS signaling structure, particularly seeks to be configured to the mode of comparing the advantage of presenting with known device mobile radio communication apparatus and mobile radio communication network equipment and the relevant method of operation with this signaling manipulation.

According to a first aspect of the invention, a kind of mobile radio communication apparatus is provided, operation is used for to mobile radio communication network equipment signaling non-access layer information, to set up and/or the maintenance network connection, described equipment is configured to comprise mark in described message, and described mark indication is separating with described non-access layer information but forms the availability that the expansion NAS message found in the additional message of expansion of described non-access layer information sends.

Advantageously, by usage flag, can in fact in the message of new/separation, provide the information in any future that will be added into non-access layer information.

This message can reflect conventional criteria layer 3 message arrangement and the content as definition in 3GPP TS 24.007.

Because the length of non-access layer information generally is limited (particularly connecting for GSM), the present invention can advantageously allow the function expansion of initial non-access layer information, and the unactual increase that requires initial message length.

Preferably, the non-access layer information of all aspects of the invention can comprise the part of position updating process.

In one form, non-access layer information can comprise the eight bit byte structure, and described eight bit byte structure can have finite length.

In a specific embodiment of all aspects of the invention, described mark can comprise the bit in one of eight bit byte, and described non-access layer information can comprise location update request message in addition.

As will be understood, the present invention is specially adapted to be configured to the equipment of signaling in the GSM network.At this moment, it can be configured such that: usage flag in GSM only, that is, in UMTS, market bit will be set to 0 all the time, and equipment will only be decoded to initial NAS message in a usual manner.

Certainly, equipment can be configured to also to be used at GSM or UMTS network signaling, and wherein, described mark can serve indication with the additional message of initial NAS message separation in the availability that sends of the expansion NAS message that finds.

According to a further aspect in the invention, a kind of mobile radio communication network equipment is provided, operation is used for receiving non-access layer information from mobile radio communication apparatus, and to set up with network and/or to keep being connected, the described network equipment is configured to: identify the mark in the described message; And the reception of waiting for additional message, sending to receive extended message, described mark indication is separating with described non-access layer information but is forming the availability of the expansion NAS message transmission of finding in the additional message of expansion of non-access layer information.

In one example, the network equipment can be configured to send prompting at additional message, and described prompting can be taked the form of request message.

The described network equipment that can comprise MSC can be configured to: postpone identification and/or authentication phase, after receiving described additional message.

In various embodiments of the present invention, described mark can be served indication needs extended message to send exchange.

According to another aspect of the invention, a kind of non-access layer information structure that comprises mark is provided, and described mark is served indication and is being separated with described non-access layer information but form the availability that the expansion NAS message found in the additional message of expansion of non-access layer information sends.

Certainly, this aspect of the present invention can comprise above any one or many aspects in conjunction with in multiple other aspects of aforementioned aspect general introduction of the present invention.

According to another aspect of the invention, provide a kind of from mobile radio communication apparatus to mobile radio communication network equipment signaling non-access layer information to set up and/or to keep method of network connection, described method is included in the step that mark is provided in the described message, the indication of described mark with additional message that described non-access layer information separates in the availability that sends of the expansion NAS message found, send to allow the signaling additional message.

Certainly, described method can relate to: described non-access layer information comprises the part of position updating process.

According to a further aspect in the invention, provide a kind of and received the method for non-access layer information to set up and/or to keep being connected with network at mobile radio communication network equipment place from mobile radio communication apparatus, said method comprising the steps of: identify the mark in the described message; And the reception of waiting for additional message, send to receive extended message, described mark indication with additional message that described non-access layer information separates in the availability that sends of the expansion NAS message found.

Described method may further include following steps: at described additional message, send prompting from described mobile radio communication network equipment; And this moment, described method can also may further comprise the steps: by sending described additional message, at described network communication equipment place, in response to described prompting.

At this moment, additional but message that separate can comprise so-called expanding location updating message, perhaps, if relate to prompting, comprise that expanding location upgrades response.

Also have, above-mentioned other aspects of the present invention can also comprise above other features in conjunction with the discussion of aforementioned aspect.

Therefore, as will be appreciated, by the present invention, can be by just using the additional extension location update message in case reach 20 eight bit bytes that limit, come expanding location update inquiry information effectively, and advantageously need not the general configuration of location update request message is changed, and its length still is 20 eight bit bytes or still less.Therefore, being easy to upgrade response message by aforesaid expanding location updating message or the above expanding location also discussed in alternative holds any required agreement of location update request message is improved.

To cause required total time of signaling procedure to increase though recognize such additional message, can expect: such delay and additional signaling will can not show problem.If the expanding location updating message is used for the exchange of the Machine Type communication information, with especially true.In addition, if in certain stage definitions in future other device attributes, can not think the types value form to be used for information element and type of service length value form is more suitable.Though think that up to the present back one form is more appropriate, because above-mentioned size restriction, disadvantageously, it can not be contained in the message (as location update request message).Therefore, use extended message discussed herein to be conducive to allow to define other device attributes that may need future.

Description of drawings

Following with reference to accompanying drawing, only further describe the embodiments of the invention as example, in the accompanying drawing:

Fig. 1 is the schematic diagram of the content of current location update inquiry information;

Fig. 2 shows the NAS signaling that occurs during the position updating process;

Fig. 3 shows location update request message according to an embodiment of the invention;

Fig. 4 shows the NAS signaling that occurs according to one embodiment of the invention;

Fig. 5 shows the NAS signaling that occurs according to another embodiment of the present invention;

Fig. 6 shows the potential structure that realizes the location update request message that equipment of the present invention can adopt in the UMTS environment;

The message that Fig. 7 shows according to the embodiment of the invention sends structure;

Fig. 8 is the schematic diagram according to the mobile radio communication apparatus of the embodiment of the invention;

Fig. 9 is the schematic diagram according to the mobile radio communication network equipment of the embodiment of the invention.

Embodiment

Turn to Fig. 1 below, show the current configuration of the location update request message 10 of the maximum length with 20 eight bit byte A, wherein, also show the distribution of each bit in 8 bits of the 19th and the 20th eight bit byte that is marked as the additional undated parameter 12 that comprises as described later and device attribute 14 with the amplification form.

As what will understand from whole bit details of the 19th eight bit byte 12, CSMT and CSMO mark have used first and second bit positions of this eight bit byte, and this serves position updating request any further expanded the

bit

3 or 4 that is limited in the 20th eight bit byte 14 or the 19th eight bit byte.

Yet as discussed above, this single available eight bit byte can only be served minimal practical purpose when allowing the expansion of position updating request.According to 3GPP TS 24.008 versions 10, as shown in the figure, even this last available eight bit byte also is attached " device attribute " information unit and uses, thereby in fact do not have eight bit byte to can be used for the expansion of location update request message this moment.

With reference to Fig. 2, the clarification of the position being upgraded sequence is provided, and described position is upgraded sequence and is appeared at mobile radio communication apparatus (as UE terminal 16) and mobile radio communication network equipment (between mobile switching centre (MSC) 18) according to for example 3GPP TS 24.008.

As shown in the figure, process originates in the position updating request 20 that sends from UE16 to MSC18, after identification and authentication phase, position updating request 20 causes: before the message of finishing from the affirmation position updating process of UE16 24, position renewal is accepted message 22 and is back to UE16 from MSC18.

As understanding according to following content, the invention provides originally upgrading the enhancing of the signaling that occurs during the sequence with reference to the position shown in Fig. 1 and 2.The signal of the location update request message 26 with the structure that limits with content that occurs according to the embodiment of the invention is provided accordingly and turn to Fig. 3.

Also have, suppose in the GSM network, to use, location update request message 26 has the maximum length of 20 eight bit bytes, and wherein adopts the 19th eight bit byte 28 of additional undated parameter also can adopt CSMT and CSMO mark as required according to version 9 as mentioned above.

Yet, for in the 19th eight bit byte 28 and the 20th eight bit byte 30 shown in Fig. 3, the present invention recognizes and still has idle bit to be positioned at those eight bit bytes, and the present invention has advantageously utilized such idle bit to realize the purpose of expanding location update inquiry information effectively.

Turn to the further details of eight bit byte 28 among Fig. 3, show 8 bit lengths in the mode of numbering bit, and can see that CSMT and CSMO mark are positioned at first and second bit positions.This still made for the third and fourth bit position free time, just as the

bit position

2,3 and 4 according to the 20th eight bit byte 30 of above-mentioned version 10.

According to this illustrated embodiment of the present invention, the 3rd bit position that new function bit LAU EXT is introduced the 19th eight bit byte 28 of location update request message 26 is although can adopt above at any other bits in the 19th and the 20th idle bit that eight bit byte is discussed certainly comparably.

Serve as mark at the new LAU EXT bit shown in the 3rd bit position of eight bit byte 28, this mark indication need be carried out the exchange of expanding location updating message with network.

Show the potential signaling that between UE and MSC, occurs of considering new LAU EXT bit in one particular embodiment of the present invention with further reference to Figure 4 and 5.

Fig. 4 is the schematic diagram of the signaling that occurs between UE32 and MSC34 according to the first embodiment of the present invention.

This signaling originates in location update request signal 36 again, and wherein the LAU EXT bit shown in Fig. 3 is set to " 1 ".

So, UE32 indicates it to send additional position update request information to MSC34, and MSC34 can be configured to postpone identification and authentication phase in the entrained additional information of the expanding location updating message of waiting for (shown in Fig. 7) separation.

Then, UE32 sends expanding location updating message 38, and expanding location updating message 38 can comprise the relevant new argument that is sent to MSC34.Certainly, if MSC34 can not realize the present invention for a certain reason, can ignore the expanding location updating message simply, perhaps MSC34 can be configured to beam back status message to UE32.

Subsequently and after identification and authentication phase, position between UE32 and the MSC34 upgrade receive 40 and the position upgrade and finish 42 signalings and exchange position updating process is finished, as shown in the figure.

According to this first embodiment, should be realized that: MSC34 is configured to wait for the additional information that UE32 sends simply in the additional extension location update message that separates.

With regard to it adopted minimum additional signaling, this specific embodiment can show its strong point, although below in conjunction with Fig. 5 another embodiment is discussed.Show the signaling relevant with this embodiment in conjunction with UE44 and MSC46, this information originates in the location update request message 48 that sends from UE44 to MSC46 again, and again LAU EXT bit is set to " 1 ".Also have, there is the additional information that will be sent to MSC46 in the mark indication of LAU EXT bit representative.

Yet, in this another embodiment, additional signaling exchange C appears, and wherein, MSC46 is to this additional information of special request rather than wait for simply that as the embodiment of Fig. 4 the UE44 of its arrival sends specific expanding location update inquiry information 50.

50, UE44 replys with new/additional extension location update message in response to request, described new/the additional extension location update message comprises that expanding location upgrades response 52, and comprises the required new argument that will be sent to MSC46.

Then, after identification and authentication phase, as previously mentioned, the exchange of 56 signalings is finished in position renewal end 54 and position renewal makes process finish again.

Therefore, as will be recognized, in the second embodiment of the present invention, when receiving the location update request message with new LAU EXT bit, MSC46 is configured to send specific expanding location update inquiry information to UE44, and special suggestion UE44 transmits new/additional extension location update message.

Though The present invention be more particularly directed to gsm environment, can serve the existence of indication additional information cell (extra cell D as shown in Figure 6) with regard to the mark of LAU EXT representative.

Therefore turn to Fig. 6, illustrate in greater detail the location update request message 58 that adopts LAU EXT bit to serve as a mark again.In this example, this mark is set to " 0 ", is indicated as the existence of the additional information cell D of " additional information 1 and additional information 2 " with indication.

Yet, in the time of in operating in GSM, and in response to the restriction to location update request message length, LAU EXT bit is set to " 1 " as mentioned above, and serve the existence that indication expanding location updating message (according to above-mentioned first embodiment) or expanding location upgrade response message (according to above-mentioned second embodiment) 60, as shown in Figure 7.

The new expanding location updating message of this separation (according to above-mentioned first embodiment) or expanding location upgrade response message (according to above-mentioned second embodiment) 60 and serve as effective expansion of the location update request message 26 of Fig. 3.

With reference to Fig. 8, the schematic diagram of the mobile radio communication apparatus UE62 of mobile phone handsets forms is provided, mobile radio communication apparatus UE62 has standard air interface, and described standard air interface comprises the reception/transmission 66 that links to each other with memory storage apparatus 68, processing unit 70 and user's interface device 72 on antenna 64 and the function in mobile phone.

In the embodiment shown, processor device 70 comprises that LAU EXT bit arranges function 74, serving bit is set to appropriate value and sends the existence of (as shown in Figure 7 60) or other with the expanding location updating message that mark separates, certainly, the expanding location updating message of separation sends and is configured to be sent by UE subsequently.

The present invention also provides the network equipment, as MSC76, for example, dispose: to the interface 78 of radio network controller and via the interface 80 of base station controller (BSC) to the GSM network, wherein, MSC76 comprises memory 82 and handles 84 functions, and wherein, processing capacity 84 can comprise in response to the device 86 that receives the location update request message that comprises mark (LAU EXT mark as discussed above).MSC76 then can be in response to identifying LAU EXT mark, by interface 78 and relevant radio network controller with the base station or by interface 80 and relevant base station controller, return the expanding location update inquiry information, special requirement UE as shown in Figure 8 sends its expanding location and upgrades response message.

According to above content, should recognize: the present invention can realize with the arbitrarily suitable product of supporting 2G/3G and CS service.Certainly, allow during position updating process,, to be easy to prove and in existing location update request message, to keep remaining idle bit with regard to the transmission additional information from UE to MSC with regard to the present invention, use to be combined in the necessary key message of MSC level.New expanding location updating message or upgrade response this moment according to the expanding location of second embodiment will be for less or non-critical information, that is, and can by MSC during the position updating process in the information of later phases (for example after identification or authentication phase) reception.

Certainly, should be realized that: the invention is not restricted to details described above, and can take the circumstances into consideration to use in conjunction with any NAS signaling message (any signaling message that adopts as the part of position updating process particularly).

Therefore, the message of paying close attention to can adopt with above-mentioned expanding location to be upgraded and the diverse identity of expanding location renewal response identity, and if desired, even can map to other existing message.

For example, MSC can use the identity request message additional information of asking UE as definition among the 3GPP TS 24.008, and therefore serves the purpose identical with above-mentioned new expanding location update inquiry information.In addition, also the existing identity response message of definition can be expanded to transport required additional information from UE to MSC in 3GPP TS 24.008, upgrades the identical purpose of response message to serve with above-mentioned so-called expanding location.

As another alternative, identification and authentication phase can occur in expanding location and upgrade after the exchange, and therefore according to another configuration, MSC can serve only (via the expanding location update inquiry information) request additional position lastest imformation after identification and/or authentication phase.

Though above description and illustrated the preferred embodiments of the present invention it is to be understood that these are examples of the present invention and should not be considered as restrictive.Can under the prerequisite that does not deviate from the scope of the invention, add, omit, replace and other modifications.Correspondingly, the present invention should not be considered as being subjected to restriction described above, and only is subjected to the restriction of the scope of claims.

Claims

1. mobile radio communication apparatus, operation is used for to mobile radio communication network equipment signaling non-access layer information, to set up and/or the maintenance network connection, described equipment is configured to comprise mark in described message, described mark indication with additional message that described non-access layer information separates in the availability that sends of the expansion NAS message found.

2. equipment according to claim 1, wherein, described non-access layer information comprises the part of position updating process.

3. equipment according to claim 1 and 2, wherein, described non-access layer information comprises the eight bit byte structure.

4. equipment according to claim 3, wherein, described eight bit byte structure has finite length.

5. according to claim 2 or 3 described equipment, wherein, described mark comprises the bit in one of described eight bit byte.

6. according to each described equipment in the aforementioned claim, wherein, described non-access layer information comprises location update request message.

7. according to each described equipment in the aforementioned claim, be configured to signaling in GSM and/or UMTS network.

8. according to each described equipment in the claim 1 to 6, wherein, described mark only is used at GSM network signaling.

9. according to each described equipment in the aforementioned claim, be configured to receive prompting message at described additional message from described mobile radio communication network equipment.

10. equipment according to claim 9, wherein, described prompting comprises request message.

11. mobile radio communication network equipment, operation is used for receiving non-access layer information from mobile radio communication apparatus, to set up with network and/or to keep being connected, the described network equipment is configured to identify the mark in the described message, and the reception of waiting for additional message sends to receive extended message, described mark indication with additional message that described non-access layer information separates in the availability that sends of the expansion NAS message found.

12. equipment according to claim 11, wherein, described non-access layer information comprises the part of position updating process.

13. according to claim 11 or 12 described equipment, wherein, described non-access layer information comprises the eight bit byte structure.

14. equipment according to claim 13, wherein, described eight bit byte structure has finite length.

15. according to claim 12 or 13 described equipment, wherein, described mark comprises the bit that is arranged in one of described eight bit byte.

16. according to each described equipment in the claim 11 to 15, wherein, described non-access layer information comprises location update request message.

17. according to each described equipment in the claim 11 to 16, be configured at described additional message, send prompting.

18. equipment according to claim 17, wherein, described prompting comprises request message.

19. according to each described equipment in the claim 11 to 18, comprise mobile switching centre.

20. according to each described equipment in the claim 11 to 19, be configured to postpone identification and/or authentication phase, after receiving described additional message.

21. according to each described equipment in the aforementioned claim, wherein, described mark is served the message transmission exchange that indication need be expanded.

22. a non-access layer information structure that comprises mark, described mark serve indication with additional message that described non-access layer information separates in the availability that sends of the expansion NAS message found.

23. message structure according to claim 22, wherein, described message comprises the part of position updating process.

24. according to claim 22 or 23 described message structures, comprise the eight bit byte structure.

25. message structure according to claim 24, wherein, described eight bit byte structure has finite length.

26. according to claim 22,23,24 or 25 described message structures, wherein, described mark comprises the bit in one of described eight bit byte.

27. according to each described message structure in the claim 22 to 26, comprise location update request message.

28. one kind from mobile radio communication apparatus to mobile radio communication network equipment signaling non-access layer information to set up and/or to keep method of network connection, described method is included in the step that mark is provided in the described message, the indication of described mark with additional message that described non-access layer information separates in the availability that sends of the expansion NAS message found, send to allow the signaling additional message.

29. method according to claim 28, wherein, described non-access layer information comprises the part of position updating process.

30. according to claim 28 or 29 described methods, wherein, described non-access layer information comprises the eight bit byte structure.

31. according to claim 28,29 or 30 described methods, wherein, described eight bit byte structure has finite length.

32. according to claim 28,29,30 or 31 described methods, wherein, described mark comprises the bit that is arranged in one of described eight bit byte.

33. according to each described method in the claim 28 to 32, comprise position updating request.

34. one kind receives the method for non-access layer information to set up and/or to keep being connected with network at mobile radio communication network equipment place from mobile radio communication apparatus, said method comprising the steps of: identify the interior mark of described message; And the reception of waiting for additional message, send to receive extended message, described mark indication with additional message that described non-access layer information separates in the availability that sends of the expansion NAS message found.

35. method according to claim 34, wherein, described non-access layer information comprises the part of position updating process.

36. according to claim 34 or 35 described methods, wherein, described non-access layer information comprises the eight bit byte structure.

37. method according to claim 36, wherein, described eight bit byte structure has finite length.

38. according to claim 34,35 or 36 described methods, wherein, described mark comprises the bit in one of eight bit byte.

39. according to each described method in the claim 34 to 38, wherein, described non-access layer information comprises position updating request.

40. according to each described method in the claim 34 to 39, may further comprise the steps: at described additional message, send prompting from described mobile radio communication network equipment.

41. according to the described method of claim 40, may further comprise the steps: by sending described additional message, at described network communication equipment place in response to described prompting.

42. according to each described method in the claim 34 to 41, wherein, described mobile radio communication network equipment comprises mobile switching centre.